1. Boron and Refractory Borides;Matkovich,1977
2. The crystal structure of YB66
3. T. Tanaka, Y. Ishizawa, Joe, Wong, Z. U. Rek, M. Rowen, F. Schäfers, B. R. Müller, Proceedings of the 11th Intern. Symp. Boron, Borides and Related Compounds, Tsukuba, 1993, 110
4. A new yttrium higher boride: YB50